1341204 Potter PS120-2 Pressure switch with two sets SPDT contacts

The Potter PS120 Series Pressure Actuated Switches are designed primarily to detect an increase and/or decrease from normal system pressure in automatic fi re sprinkler systems. Typical applications are: Wet pipe systems with excess pressure, pressure tanks, air supplies, and water supplies. The PS120 switch is factory set for 120 PSI (8,3 BAR) normal system pressure. The switch marked with the word LOW is set to operate at a pressure decrease of 10 PSI (0,7 BAR) at 110 PSI (7,6 BAR). The switch marked with the word HIGH is set to operate at a pressure increase of 10 PSI (0,7 BAR) at 130 PSI (9 BAR). See section heading Adjustments and Testing if other than factory set point is required.

• UL, cUL, and CSFM Listed, FM and LPC Approved, NYMEA Accepted, CE Marked Pending
• Dimensions: - 3.78" (9.6cm)W x 3.20" (8.1cm)D x 4.22" (10.7cm)H
• Conduit Entrance:
• Two knockouts provided for 1/2" conduit.
• Individual switch compartments and ground screw suitable for dissimilar voltages
• Switch Contacts:
• SPDT (Form C)
• 10.1 Amps at 125/250VAC, 2.0 Amps at 30VDC
• One SPDT in PS120-1, Two SPDT in PS120-2
• Environmental Specifications:
• NEMA 4/IP55 Rated Enclosure - indoor or outdoor when used with NEMA 4 conduit fi ttings.
• Temperature range: -40°F to 140°F (-40°C to 60°C)
• Pressure Range - 25-175 PSI (1,7 - 12,1 BAR)
• Differential:
• Typical 2 lbs. at 25 PSI (0,14 at 1,7 BAR)
• 8 lbs at 175 PSI (55 at 12,1 BAR)
• Maximum System Pressure - 300 PSI (20,68 BAR)
• Factory Adjustment - PS120-1 operates on decrease at 110 PSI (7,6 BAR)
• Enclosure
• Cover- Die-cast with textured red powdercoat fi nish, single cover screw and rain lip.
• Base- Die-cast
• Pressure Connection - Nylon 1/2" NPT male

1341204 Specifications PDF